Orange Pi5 kernel

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * MPC86xx HPCN board specific routines
 *
 * Recode: ZHANG WEI <wei.zhang@freescale.com>
 * Initial author: Xianghua Xiao <x.xiao@freescale.com>
 *
 * Copyright 2006 Freescale Semiconductor Inc.
 */
 
#include <linux/stddef.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/kdev_t.h>
#include <linux/delay.h>
#include <linux/seq_file.h>
#include <linux/of_platform.h>
 
#include <asm/time.h>
#include <asm/machdep.h>
#include <asm/pci-bridge.h>
#include <asm/prom.h>
#include <mm/mmu_decl.h>
#include <asm/udbg.h>
#include <asm/swiotlb.h>
 
#include <asm/mpic.h>
 
#include <sysdev/fsl_pci.h>
#include <sysdev/fsl_soc.h>
 
#include "mpc86xx.h"
 
#undef DEBUG
 
#ifdef DEBUG
#define DBG(fmt...) do { printk(KERN_ERR fmt); } while(0)
#else
#define DBG(fmt...) do { } while(0)
#endif
 
#ifdef CONFIG_PCI
extern int uli_exclude_device(struct pci_controller *hose,
<------><------><------><------>u_char bus, u_char devfn);
 
static int mpc86xx_exclude_device(struct pci_controller *hose,
<------><------><------><------>   u_char bus, u_char devfn)
{
<------>if (hose->dn == fsl_pci_primary)
<------><------>return uli_exclude_device(hose, bus, devfn);
 
<------>return PCIBIOS_SUCCESSFUL;
}
#endif /* CONFIG_PCI */
 
 
static void __init
mpc86xx_hpcn_setup_arch(void)
{
<------>if (ppc_md.progress)
<------><------>ppc_md.progress("mpc86xx_hpcn_setup_arch()", 0);
 
#ifdef CONFIG_PCI
<------>ppc_md.pci_exclude_device = mpc86xx_exclude_device;
#endif
 
<------>printk("MPC86xx HPCN board from Freescale Semiconductor\n");
 
#ifdef CONFIG_SMP
<------>mpc86xx_smp_init();
#endif
 
<------>fsl_pci_assign_primary();
 
<------>swiotlb_detect_4g();
}
 
 
static void
mpc86xx_hpcn_show_cpuinfo(struct seq_file *m)
{
<------>uint svid = mfspr(SPRN_SVR);
 
<------>seq_printf(m, "Vendor\t\t: Freescale Semiconductor\n");
 
<------>seq_printf(m, "SVR\t\t: 0x%x\n", svid);
}
 
 
/*
 * Called very early, device-tree isn't unflattened
 */
static int __init mpc86xx_hpcn_probe(void)
{
<------>if (of_machine_is_compatible("fsl,mpc8641hpcn"))
<------><------>return 1;	/* Looks good */
 
<------>/* Be nice and don't give silent boot death.  Delete this in 2.6.27 */
<------>if (of_machine_is_compatible("mpc86xx")) {
<------><------>pr_warn("WARNING: your dts/dtb is old. You must update before the next kernel release.\n");
<------><------>return 1;
<------>}
 
<------>return 0;
}
 
static const struct of_device_id of_bus_ids[] __initconst = {
<------>{ .compatible = "fsl,srio", },
<------>{},
};
 
static int __init declare_of_platform_devices(void)
{
<------>mpc86xx_common_publish_devices();
<------>of_platform_bus_probe(NULL, of_bus_ids, NULL);
 
<------>return 0;
}
machine_arch_initcall(mpc86xx_hpcn, declare_of_platform_devices);
 
define_machine(mpc86xx_hpcn) {
<------>.name			= "MPC86xx HPCN",
<------>.probe			= mpc86xx_hpcn_probe,
<------>.setup_arch		= mpc86xx_hpcn_setup_arch,
<------>.init_IRQ		= mpc86xx_init_irq,
<------>.show_cpuinfo		= mpc86xx_hpcn_show_cpuinfo,
<------>.get_irq		= mpic_get_irq,
<------>.time_init		= mpc86xx_time_init,
<------>.calibrate_decr		= generic_calibrate_decr,
<------>.progress		= udbg_progress,
#ifdef CONFIG_PCI
<------>.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,
#endif
};